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configure: Change the rdtsc check to a linker check

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A compile-only test could succeed with an implicit function declaration.
Also move the check to the x86 section; rdtsc is x86-only.
This commit is contained in:
Diego Biurrun 2012-07-09 01:24:37 +02:00 committed by Michael Niedermayer
parent 84d902fb92
commit 96890c001f
1 changed files with 2 additions and 2 deletions
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4
configure vendored
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@ -2948,8 +2948,6 @@ check_cc <<EOF && enable inline_asm
void foo(void) { __asm__ volatile ("" ::); }
EOF
check_code cc intrin.h "__rdtsc()" && enable rdtsc
_restrict=
for restrict_keyword in restrict __restrict__ __restrict; do
check_cc <<EOF && _restrict=$restrict_keyword && break
@ -3057,6 +3055,8 @@ elif enabled sparc; then
elif enabled x86; then
check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
enable local_aligned_8 local_aligned_16
# check whether EBP is available on x86